CVE-2009-0816 json
Typo3 Backend XSS Vulnerability
published 2009-03-05 17 y ago modified 2026-09-10 1 mo ago also GHSA-jg55-3q6h-2ccf , EUVD-2022-4356
- cvss
- 4.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 64%
- public exploits
- 0
- none known
Summary
Multiple cross-site scripting (XSS) vulnerabilities in the backend user interface in TYPO3 3.3.x through 3.8.x, 4.0 before 4.0.12, 4.1 before 4.1.10, 4.2 before 4.2.6, and 4.3alpha1 allow remote attackers to inject arbitrary web script or HTML via unspecified fields.
Patch / fix
- packagist typo3/cms 4.0.12, 4.1.10, 4.2.6
Exploit prediction
1.06% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | typo3/cms | >=3.3.0 >=4.0, <4.0.12 >=4.1.0, <4.1.10 >=4.2.0, <4.2.6 1 listed version |
4.0.12 4.1.10 4.2.6 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
typo3.org
/teams/security/security-bulletins/typo3-sa-2009-002/
patch, vendor-advisory
-
debian.org
/security/2009/dsa-1720
vendor-advisory, web
-
openwall.com
/lists/oss-security/2009/02/10/6
mailing-list, web
-
securitytracker.com
/id?1021709
vdb-entry
-
nvd.nist.gov
/vuln/detail/CVE-2009-0816
advisory
-
web.archive.org
/web/20210507104956/http://www.securitytracker.com/id?1021709
web
-
typo3.org
/teams/security/security-bulletins/typo3-sa-2009-002
web
Sources
- CVE List CVE-2009-0816
- GitHub Advisory GHSA-jg55-3q6h-2ccf
- NVD CVE-2009-0816
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.